Poland
| Senate constituency no. 90 (OKW Poznań) | |
| Statistic on 09.10.2011 | |
| Inhabitants: | 323 659 |
| Precincts quantity: | 183 |
| Electors: | 254 453 |
| Mandates: | 1 |
| Senator of the constituency No. 90 in term 2011 - 2015 | ||||||
| Card number | Candidate data | Number of valid votes for candidate | ||||
| Family name and given names | Profession | committee | Quantity | % (in the constituency) | ||
| 3 | Ziółkowski Marek Aleksander | nauczyciel akademicki | Komitet Wyborczy Platforma Obywatelska RP | 89 368 | 64,61% | |
| Name | % of valid votes | Mandat |
| Komitet Wyborczy Platforma Obywatelska RP | 64,61% | Yes |
| Komitet Wyborczy Prawo i Sprawiedliwość | 21,15% | No |
| Komitet Wyborczy Wyborców "Nasz Powiat" Piotr Batura | 14,24% | No |
